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316 Stainless Threading

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  • 316 Stainless Threading

    Just wondering about the best method on threading 316 ss, we have made many threads, but with inconsitent results.
    Thanks

  • #2
    Re: 316 Stainless Threading

    Got dies for stainless ? What type of die head ?

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    • #3
      Re: 316 Stainless Threading

      please be specific on the methods and machinery you use as well as the sizes you are threading. it may be the speed of the machine and perhaps the threading oil you are using.
      http://www.blackbookoftools.com
      http://www.gronim.com

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      • #4
        Re: 316 Stainless Threading

        We are using a 2" 12R with HS SS dies, Ridgid dark oil, will get about 10 or 15 thds max out of a set of dies, also have used 67R threader with HS, SS dies, that seems to be a bit better, but die life is still short, all these powered by 700 power drive.
        Thanks

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        • #5
          Re: 316 Stainless Threading

          Originally posted by sbos View Post
          We are using a 2" 12R with HS SS dies, Ridgid dark oil, will get about 10 or 15 thds max out of a set of dies, also have used 67R threader with HS, SS dies, that seems to be a bit better, but die life is still short, all these powered by 700 power drive.
          Thanks
          the dies are #37550 for 2'' hi speed stainless correct?

          the oil should be their newer "extreme performance oil"

          "high performance mineral oil formulated to produce superior quality threads on stainless steel and black pipe"

          1 gallon part # 74012

          do you have access to a bench top machine like a 300 or a 535?

          the 700 is a great machine, but 2'' stainless is really pressing it's limits and you will have more consistent results with a bench top fixed chuck and die head.

          the rpm is 32 no load on the 700

          38 rpm. on the 300

          the 535A has 3 spindle speeds and 16/46/58. my choice is 16

          the 535 is 36 rpm.

          hope this helps.

          rick.
          phoebe it is

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